'Tox-Doc' answers water safety questions amid boil notice in Houston

HOUSTON, Texas (KTRK) -- A major water main break Thursday morning in Houston flooded the East 610 Loop and prevented many cars from passing through.

City officials said the water line that burst provides water to 40-50 percent of Houston residents.

MAP: City of Houston's boil water notice

BOIL WATER NOTICE: A map provided by the City of Houston shows the areas affected (shaded yellow) in the water advisory after a line break just off the East Loop.



SEE ALSO:
Water line break impacting up to 50 percent of Houston
Massive water main break impacts Houston traffic


Mayor Sylvester Turner issued an advisory urging residents to boil water before use. The notice, issued to most of the city, will last 24 hours.

Many schools have also closed down Friday.
ABC13 spoke with environmental toxicologist Dr. Noreen Khan-Mayberry, also known as "Houston's Tox-Doc" about questions the public might have about why boiling water is necessary, how to properly do it and when it is needed.

USEFUL TIPS IN A WATER EMERGENCY:
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